How can one master Data structures and Algorithms easily?
In Computer Science, you need to study a lot of subjects in your entire curriculum, but Data structure and Algorithm is one of the most important subjects. In campus placements or any interview, you will always have the upper hand if you have a proper insight into these subjects. Data structures and Algorithms are the rudiments of your logical and problem-solving abilities. Most of the product based companies generally look for persons who are well-versed in the data structure. So, if you want to brag a handsome salary after your graduation, then you are in the correct place. Stay with us till the last line since we will tell you some excellent tips to master Data structure and Algorithm easily.
- Find your purpose
Before starting, you should always ask yourself why you need to study this!
Your answer may be “To pass in the exam.”
But that is not the only reason. Suppose you want to go to your school from your house, and you take the shortest route while your friend takes some other route. In this case, you are the smarter one since, unknowingly, you have already applied algorithms in your day to day life.
“Reading data structure and algorithm will not only help you to pass in the exam but will also help you to become smarter if you implement them correctly.”
2. Understand the basic concepts
Don’t mug up and read the subjects in a proper sequence, as mentioned in the preface of any standard book. By this approach, you will get to know the shortcomings of the prior one and why the later one was invented. Topics like Stack, queue, Linked lists, Hash map, Binary tree, AVL tree, and different searching and sorting algorithms should be adequately grasped.
a. Data structure using C by Reema Thereja
b. Introduction to design an algorithm by Anany Levitin
a. Geeks for Geeks.
3. Hands-on your knowledge
After learning, try to “hands-on” your concepts in any language in which you are comfortable. If you do some practical stuff, then it helps you to remember it for a long time.
4. Avoid using Python in the beginning.
Most of you may dislike this point, but it is a fact. Python offers a lot of built-in functions, which helps to shorten your code. Still, in the beginning, if you are provided with these facilities, then you will not learn the main algorithms of sorting and searching, and your necessary foundation may become weak. It is advisable to use C or C++ initially, and later on, while developing your skills in competitive programming, you can use Python.
5. Always search for the best and efficient approach.
This is the most important tip since your algorithm’s objective should always be to reduce the time complexity and should have the best approach.
For example, Binary search is always faster than linear search if your array is sorted.
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